[i=s]This post was last edited by ksniper on 2021-6-21 16:15[/i]I am very happy to read the physical version of Zheng Huimin's book "Operational Amplifier Parameter Analysis and LTspice Application Si...
I'm tinkering with AD7190. The data can be read, but sometimes it's wrong.Most of the values are correct, but sometimes they are very different.The program was written by another person, who said he u...
We are looking for MCU sales engineers: experienced, able to open orders, annual salary 100,000 to 300,000+, no upper limit. Ms. Sun 15817472114 (same as WeChat ID), location: Xixiang, Baoan....
When reading the book "496 C Language Questions You Must Know", the "Duff Device" is mentioned, mainly the following code:
register n = (count + 7) / 8;
switch (count % 8){
case 0: do { *to = *from++;...
Dear experts, please help me. . I am making an MP3 player recently. The general method is to read the audio file in the SD card with stm32f103vet6, and then pass it to VS1053b for decoding and playbac...
On February 14, Beijing Junzheng issued an announcement on overseas investment in industrial funds. The announcement shows that Beijing Junzheng, Fengyuan Investment (Pingtan) Co., Ltd. and other li...[Details]
LEDs require a circuit driver to convert the standard AC voltage into a usable DC current and voltage.
To make LED bulbs compatible with standard sockets without sacrificing their operating lif...[Details]
Introduction
All cars use a fuel level sensor (FLS) to indicate the fuel level. However, different manufacturers often use a variety of different methods to measure the fuel level, such as res...[Details]
PV inverter manufacturer SMA Solar Technology has lowered its 2018 revenue and profit forecasts again since October, now expecting sales of between EUR 760 million and EUR 780 million, compared wit...[Details]
This article takes the AT89C51 system with a 6MHz clock as an example to illustrate the application of clock interrupts:
Timer initial value and interrupt cycle The clock interrupt does not ne...[Details]
Although there are many brands of mobile phones on the market, their charging circuits are roughly the same, all using PMOS-based charging circuits. When using PMOS, it is easy to control its switc...[Details]
LM317 current expansion circuit
Figure 1:
2N3055 can expand the current, but it is a bit dangerous to use it at 5A. It is better to use two in parallel to be safer.
LM317 curre...[Details]
The newest member of the newest member of the newest member community is the newest member of the newest member community. List of winners of the "Sixth Sense" Design Challenge . As one of the five ...[Details]
As cars are transformed from a means of transportation to a personalized consumer product that integrates leisure and entertainment, consumers' requirements for car entertainment are constantly incre...[Details]
(Nickname and avatar have been processed) Many people have asked this question. Regarding the clock of the STM32 timer, TIM2 uses the clock of APB1. The clock of APB1 is clearly 36M, but why is it...[Details]
Switched capacitor filter technology allows the filter cutoff frequency to be adjusted using an external or on-chip clock that is a multiple of the cutoff frequency. This originally very convenient f...[Details]
Climate change and resource scarcity have become global trends. Under the general trend of global energy conservation and emission reduction, seeking clean energy and improving energy efficiency have...[Details]
Apple has launched the 2019 iPhone, but the supply chain has reported that Apple is likely to adjust its casing suppliers from the original two major and two minor suppliers, given the integration ad...[Details]
Powerint's RD-268 is a 1.1W PFC LED driver (non-isolated) reference design using the LinkSwitchTM-PL series LNK454DG. It has a single constant current output of 366mA, an LED voltage of 3.0V, a univer...[Details]
Simple classification of ARM registers: Figure 1-1:
Figure 1-1
There are 37 32-bit registers in the ARM microprocessor, including 31 general registers and 6 status registers. Howeve...[Details]
Analog electronics
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